Drum-type ultrasonic cleaning machine and method for cleaning workpieces

Abstract

The invention provides a drum-type ultrasonic cleaning machine (10). The drum-type ultrasonic cleaning machine (10) comprises a frame (101), an ultrasonic vibration box (102) and a drum (103); the frame (101) comprises a first plate (1012) and a second plate (1014) which are arranged opposite to each other; the ultrasonic vibration box (102) is fixed on the frame (101) and arranged between the first plate (1012) and the second plate (1014), and the ultrasonic vibration box (102) is provided with a shaft (1021) extending through the first plate (1012) and the second plate (1014); and the drum (103) is arranged between the first plate (1012) and the second plate (1014) and surrounds a shell (1023) of the ultrasonic vibration box (102), and the drum (103) is arranged to be rotatable around the ultrasonic vibration box (102). On the other hand, the invention further provides a method for cleaning workpieces. The drum-type ultrasonic cleaning machine (10) can be used for at least eliminating the phenomenon of workpiece lamination.

Description

technical field [0001] The invention relates to a cleaning machine and a method for cleaning workpieces, in particular to a drum-type ultrasonic cleaning machine for sintered NdFeB alloy magnet workpieces and a method for cleaning sintered NdFeB alloy magnet workpieces. Background technique [0002] In the sintered NdFeB rare earth permanent magnet industry and small hardware industries, for nearly half a century, flat-plate ultrasonic machines at the bottom of the tank and manual stirring have been widely used to remove oil and rust. This man-machine cooperation to complete the degreasing and derusting mode is labor-intensive, laborious, time-consuming, inefficient, high in cost, and poor in cleaning effect. The main problem of manual operation is that there is lamination of workpieces. After cleaning, there are grease and rust residues on the surface of workpieces, which leads to the decrease of the bonding force of the coating after electroplating, and fatal quality accid...

AI Technical Summary

Problems solved by technology

This method of man-machine cooperation to complete degreasing and rust removal is labor-intensive, laborious, time-consuming, low in efficiency, high in cost and poor in cleaning effect

The main problem of manual operation is the lamination phenomenon of workpieces. After cleaning, there are grease and rust residues on the surface of the workpieces, which will lead to the decrease of the bonding force of the coating after electroplating, and fatal quality accidents such as coating shedding and device shedding will occur.

When the grain boundary diffuses, if there is oil sludge or rust impurities on the surface of the workpiece, it will block the grain boundary channel, so that elements such as heavy rare earth dysprosium and uranium cannot diffuse and penetrate.

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